Audio/Connector/Phone/TRRS

• TRRS — Tip-Ring-Ring-Sleeve

  • Four contacts, three insulating rings. Adds a microphone and inline-remote contact to the stereo pair of Audio/Connector/Phone/TRS.
  • Two wiring orders are in circulation, CTIA/AHJ and OMTP. Both put left on the tip and right on the first ring, and they swap the microphone and ground between the second ring and the sleeve.
  • Five-contact successors exist: TRRRS at 3.5 mm under ITU-T P.382, adding a second microphone or a power line, and the 4.4 mm Pentaconn under JEITA RC-8141C for balanced headphone cable.

  • Sizes

    • Audio/Connector/Phone/TRRS/3.5mm — phone and tablet headsets. Defined by JEITA/EIAJ RC-5325A.